PROCESS FOR DISTILLATIVE PURIFICATION OF UNSATURATED CARBOXYLIC ANHYDRIDES
The invention relates to a process for distillative removal of a unsaturated carboxylic anhydride of the general formula (I) R-C(O)-O-C-(O)-R in which R is an unsaturated organic radical having 2 to 12 carbon atoms, wherein said unsaturated carboxylic anhydride is discharged in gaseous form from a s...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | The invention relates to a process for distillative removal of a unsaturated carboxylic anhydride of the general formula (I) R-C(O)-O-C-(O)-R in which R is an unsaturated organic radical having 2 to 12 carbon atoms, wherein said unsaturated carboxylic anhydride is discharged in gaseous form from a sidestream take-off and is condensed in an atomized liquid circulating stream of said unsaturated carboxylic anhydride.
L'invention concerne un procédé d'élimination par distillation d'un anhydride carboxylique insaturé de formule générale (I) R-C(O)-O-C-(O)-R, dans laquelle R est un radical organique insaturé ayant 2 à 12 atomes de carbone, ledit anhydride carboxylique insaturé étant évacué sous forme gazeuse à partir d'un soutirage latéral et étant condensé dans un courant de circulation de liquide atomisé dudit anhydride carboxylique insaturé. |
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